[Gluster-users] Where does Gluster capture the hostnames from?

[Strahil]

Check your /etc/hosts for an entry like:
192.168.0.60 mdskvm-p01.nix.mds.xyz mdskvm-p01

Best Regards,
Strahil NikolovOn Sep 23, 2019 06:58, TomK <tomkcpr at mdevsys.com> wrote:
>
> Hey All, 
>
> Take the two hosts below as example.  One host shows NFS Server on 
> 192.168.0.60 (FQDN is mdskvm-p01.nix.mds.xyz). 
>
> The other shows mdskvm-p02 (FQDN is mdskvm-p02.nix.mds.xyz). 
>
> Why is there no consistency or correct hostname resolution?  Where does 
> gluster get the hostnames from? 
>
>
> [root at mdskvm-p02 glusterfs]# gluster volume status 
> Status of volume: mdsgv01 
> Gluster process                             TCP Port  RDMA Port  Online  Pid 
> ------------------------------------------------------------------------------ 
> Brick mdskvm-p02.nix.mds.xyz:/mnt/p02-d01/g 
> lusterv02                                   49153     0          Y 
> 17503 
> Brick mdskvm-p01.nix.mds.xyz:/mnt/p01-d01/g 
> lusterv01                                   49153     0          Y 
> 15044 
> NFS Server on localhost                     N/A       N/A        N       N/A 
> Self-heal Daemon on localhost               N/A       N/A        Y 
> 17531 
> NFS Server on 192.168.0.60                  N/A       N/A        N       N/A 
> Self-heal Daemon on 192.168.0.60            N/A       N/A        Y 
> 15073 
>
> Task Status of Volume mdsgv01 
> ------------------------------------------------------------------------------ 
> There are no active volume tasks 
>
> [root at mdskvm-p02 glusterfs]# 
>
>
>
>
> [root at mdskvm-p01 ~]# gluster volume status 
> Status of volume: mdsgv01 
> Gluster process                             TCP Port  RDMA Port  Online  Pid 
> ------------------------------------------------------------------------------ 
> Brick mdskvm-p02.nix.mds.xyz:/mnt/p02-d01/g 
> lusterv02                                   49153     0          Y 
> 17503 
> Brick mdskvm-p01.nix.mds.xyz:/mnt/p01-d01/g 
> lusterv01                                   49153     0          Y 
> 15044 
> NFS Server on localhost                     N/A       N/A        N       N/A 
> Self-heal Daemon on localhost               N/A       N/A        Y 
> 15073 
> NFS Server on mdskvm-p02                    N/A       N/A        N       N/A 
> Self-heal Daemon on mdskvm-p02              N/A       N/A        Y 
> 17531 
>
> Task Status of Volume mdsgv01 
> ------------------------------------------------------------------------------ 
> There are no active volume tasks 
>
> [root at mdskvm-p01 ~]# 
>
>
>
> But when verifying everything all seems fine: 
>
>
> (1): 
> [root at mdskvm-p01 glusterfs]# dig -x 192.168.0.39 
> ;; QUESTION SECTION: 
> ;39.0.168.192.in-addr.arpa.     IN      PTR 
>
> ;; ANSWER SECTION: 
> 39.0.168.192.in-addr.arpa. 1200 IN      PTR     mdskvm-p02.nix.mds.xyz. 
> [root at mdskvm-p01 glusterfs]# hostname -f 
> mdskvm-p01.nix.mds.xyz 
> [root at mdskvm-p01 glusterfs]# hostname -s 
> mdskvm-p01 
> [root at mdskvm-p01 glusterfs]# hostname 
> mdskvm-p01.nix.mds.xyz 
> [root at mdskvm-p01 glusterfs]# 
>
>
> (2): 
>
> [root at mdskvm-p02 glusterfs]# dig -x 192.168.0.60 
> ;; QUESTION SECTION: 
> ;60.0.168.192.in-addr.arpa.     IN      PTR 
>
> ;; ANSWER SECTION: 
> 60.0.168.192.in-addr.arpa. 1200 IN      PTR     mdskvm-p01.nix.mds.xyz. 
>
> [root at mdskvm-p02 glusterfs]# hostname -s 
> mdskvm-p02 
> [root at mdskvm-p02 glusterfs]# hostname -f 
> mdskvm-p02.nix.mds.xyz 
> [root at mdskvm-p02 glusterfs]# hostname 
> mdskvm-p02.nix.mds.xyz 
> [root at mdskvm-p02 glusterfs]# 
>
>
> Gluster version used is: 
>
> [root at mdskvm-p01 glusterfs]# rpm -aq|grep -Ei gluster 
> glusterfs-server-3.12.15-1.el7.x86_64 
> glusterfs-client-xlators-3.12.15-1.el7.x86_64 
> glusterfs-rdma-3.12.15-1.el7.x86_64 
> glusterfs-3.12.15-1.el7.x86_64 
> glusterfs-events-3.12.15-1.el7.x86_64 
> libvirt-daemon-driver-storage-gluster-4.5.0-10.el7_6.12.x86_64 
> glusterfs-libs-3.12.15-1.el7.x86_64 
> glusterfs-fuse-3.12.15-1.el7.x86_64 
> glusterfs-geo-replication-3.12.15-1.el7.x86_64 
> python2-gluster-3.12.15-1.el7.x86_64 
> glusterfs-cli-3.12.15-1.el7.x86_64 
> vdsm-gluster-4.20.46-1.el7.x86_64 
> glusterfs-api-3.12.15-1.el7.x86_64 
> glusterfs-gnfs-3.12.15-1.el7.x86_64 
> [root at mdskvm-p01 glusterfs]# 
>
>
> -- 
> Thx, 
> TK. 
> ________ 
>
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